The Babylonians used a base-60 number system and developed a symbol for zero around 3000 BCE.

The Babylonian zero symbol was primarily used as a placeholder to indicate the absence of a value in a place-value system.

The ancient Greeks did not have a specific symbol for zero. Instead, they left a blank space to indicate the absence of a value.

The concept of zero as a number, distinct from its role as a placeholder, first emerged in India during the 6th century CE.

Aryabhata, an Indian mathematician and astronomer, is credited with introducing the concept of zero as a number in his treatise, the Aryabhatiya, written in the 6th century CE.

Aryabhata's introduction of zero as a number had several significant implications, including enabling the development of place-value notation, simplifying mathematical calculations, and allowing for the representation of negative numbers.

The concept of zero spread from India to other parts of the world through a combination of trade and cultural exchange, the Silk Road, and the writings of Arab mathematicians.

Al-Khwarizmi, a Persian mathematician and astronomer, played a crucial role in transmitting the concept of zero to the Western world through his treatise, Hisab al-Jabr w'al-Muqabala, written in the 9th century CE.

Al-Khwarizmi's work had a profound influence on the development of mathematics in Europe, introducing the concept of zero, leading to the development of algebra, and contributing to the rise of the scientific revolution.

The concept of zero finally became widely accepted in Europe during the 13th century, thanks to the work of European mathematicians such as Leonardo of Pisa (Fibonacci).

The introduction of zero had a profound impact on the development of mathematics, revolutionizing mathematical calculations, enabling the development of new mathematical concepts, and facilitating the study of advanced mathematics.

Place-value notation, which is the system we use to represent numbers, relies heavily on the concept of zero.

In modern mathematical notation, zero is represented by the symbol '0'.

The additive inverse of zero is zero itself.

The multiplicative inverse of zero is undefined.